On Fri, 14 Jun 2024 16:05:04 -0700 Suren Baghdasaryan <surenb@xxxxxxxxxx> wrote: > During compaction isolated free pages are marked allocated so that they > can be split and/or freed. For that, post_alloc_hook() is used inside > split_map_pages() and release_free_list(). split_map_pages() marks free > pages allocated, splits the pages and then lets alloc_contig_range_noprof() > free those pages. release_free_list() marks free pages and immediately > frees them. This usage of post_alloc_hook() affect memory allocation > profiling because these functions might not be called from an instrumented > allocator, therefore current->alloc_tag is NULL and when debugging is > enabled (CONFIG_MEM_ALLOC_PROFILING_DEBUG=y) that causes warnings. It would be helpful to quote the warnings for the changelog. And a Reported-by:/Closes: if appropriate. I'm assuming we want this in 6.10-rcX? Please help in identifying the Fixes:, for anyone who might be backporting allocation profiling.
